Betta has cut/wound on head

[fishlife9]

my girl betta that ive had has been acting strange not swimming and i noticed this wound on her head. what can i do about healing it? sorry this is a blurry pic i took it just now at 12:24 am

 

[butterflybetta]

Can you describe the wound? I can't see it clearly from the picture. It would also help if you filled out the emergency template!